Answer: 745
Step-by-step explanation: if there were initialy 80 books and its increasing by 25% every month, for month 1 we have:
25% = 0,25
increase is 1+0.25
M1 = 80.(1+0.25)¹ = 80.1.25 = 100
M10 = 80 (1+0.25)¹⁰ = 80. 9.313225 = 745.05 (end of the month)
We are trying to isolate 
. Subtract 
from both sides. 
Find the square root of both sides. 
<em>Note: I've attached a graph of 
.</em>
33 = p -6.71
To solve for P, add 6.71 to each side:
p = 33 + 6.71
p = 39.71
The second choice is correct.
Answer:
5400
Step-by-step explanation:
60 min=1 hour
120 min=2 hr
120 x 45=5400
The set A defined as a multiple of 3 that are less than 20 is given as:
A = {3,6,9,12,15,18}
<h3>What is a set? </h3>
A set is a collection of elements in a defined order
<h3>How to write the universal set </h3>
The universal set U which contains natural number of at most 25 is given as
U = {1,2,3,4,5,6,7,8,9,10,...,25}
<h3>How to write the elements of set A </h3>
The set A defined as a multiple of 3 that are less than 20 is given as
A = {3,6,9,12,15,18}
Learn more about set:
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